Non-sinkable ship



50 bottom for folding and extension'purposes.

UNITED STATES PATENT OFFICE.

- STANLEY soxotowsxr AND'JAKQIB FORGIEL, or TAUNTON, MASSACHUSETTS."

, NoN-smxABLE snrr.

Application filed April 8,

To all whom it concern Be it known thatwe, STAN EYL-SOKOLOW- SKI and JAKoB FoRcIEL, citizens of the sustaining the ship in the event of damage to thehull thereof. V

A further object is to provide means of this. kind which is arranged within the confines of the hull when not in use and ex tended laterally-when in use.

- For further comprehension of the invention, and 'of the objects and advantages.

thereof, reference will be hadto the following description and accompanying drawings,

and to the appended claims in which'the va-. rious novel features of the invention are moreparticularly set forth.

Figure 1 of the drawings 18. a side view of a ship having the invention applied thereto.

Fig. 2 is a plan View thereof. I Fig. 3 is an enlarged 'artial plan view of the ship. 1

Fig. 4 is a transverse section on. the line 44 of Fig. 3.

Fig. 5 is a detail view showing the means for connecting the main drums to the power drive. The hull of the ship is indicated at 10 and may be, generally speaking, of the usual construction, the main deck of the ship being shown at 11. Formed in opposite sides of the hull 10, and extending the major portion of the length thereof, are recesses or pockets 12 which open outwardly, their inner walls being formed by plates 13, while they are normally closed by doors 14 hinged to the hull at their upper edges as at 15, and

extending flush with the sides of the hull. Carried in the pockets 12 are extensible air bags 17 which may be suitably attached to the doors 14 and the pocket Walls 13, having suitably formed plaits 17 on their ends and The doors 14 are held in closed position by means of ropes 18 attached. to the inner faces thereof and wound on drums 19 fixed on vertical shafts 20 extending downwardly through the pockets 12 and supported by Specification of Letters Patent. Patented Sept, 20,. 1921.

1921. Serial No. 459,676. I

suitable bearings, suitable, air tight packing glands engagingthese shafts where they pass through the top and bottom pocket walls. V r I Fixed on these shafts 20, just above the deck 11, are ratchet wheels 21, the upper ends of the shafts extending a distance above the deck and having hand wheels .22 fixed thereon. Fixed on pins 23 passing through the deck 11 are pawls 24 adapted 'to engage the. ratchet wheels 21. Fixed on the pins 23,

under the deck 11, are arms 25, these arms being connectedby a rod 26extending transversely of the ship under the deck 11 whereby both pawls are operated in unison. T ension sprlngs 28 connected to the rod normally hold the pawls engaging the wheels 21.

For swinging the doors '14 open I attach thereto a pair of ropes 30 which extend upwardly outside the hull 10,'and inwardly over the pulleys 31 on the ships gunwales, the inner ends of these ropes being normally unattached to the door opening mechanism,

The door opening mechanism comprises a pair of drums 34 j ournaled on suitable standards 35,these' standards being mounted on hinged hatch-way doors 36 in the deck 11.

The drums may beindividually rotated by:

means of crank handles 37 fixed on auxiliary shafts on each which is a gear pinion 39 meshing with a gear 40 on the drum shaft 41.

-to a shaft 47 alined with the drum shafts 41 and having slidably sleeves such as 48on opposite ends adapted to effect a driving connection therebetween and the drum shafts.

Under normal conditions the doors 36 remain in the open position shown in dotted lines in Fig. 4 to give access to the hatchway, the doors being swung to the full line position when the invention is to be put into Upon the underside of each of the doors 36, adjacent the free edge thereof, is a cam projection 50 which is adapted to engage a lug 51 on the rod 26 when the door is closed and move said rod ina direction to free the pawls 24 from the ratchet wheels 21. It is believed thatthe manner of use of our' invention will be readily understood from the above description. Under normal condition the ropes 18 hold the pocket doors 14 closed, the pawls 24 preventing unwinding movement of these ropes from the drums 19. WVhen the device is to be brought into i use the doors 36 are closed, the cams 50 engaging lugs 51 and 'freeing the pawls 24 from the ratchet wheels 21. The ropes 30 and 34 are connected together,'the sleeves 48 engaged'with-the drum shafts 41, and the drums rotated to swing the doors 14 upwardly, expanding the bags 17 which have one-way air valves 60' leading thereinto' through the doors 14. I

Having thus described our invention what we claim as new and desire to protect by Letters Patent of the United States is a follows? 1. A ship having a pocket in each side of the hull thereof, hinged doors flush with the hull closing said pockets, air tight bags in said pockets, ropes attached to the inner sides of said doors to hold the same'closed, ropes attached to the'outer sides of said doors to Lopenthe same, and means mounted on the V deck of the'ship for releasing said first ropes and pulling on said second ropes. I

2. A ship having a pocket in each side of the hull thereof, hingeddoors flush with the V hull closingsaid pockets, means holding said door closed, a hatch-way door adapted-when swung to closed position 'to -release said means," and winding mechanism on. said hatch-way door for opening said pocket doors. a 3; A ship having a pocket in each side of the hull thereof, airtight bags in said pockets, hinged doors flush with the hull closing said pockets, means including a pair of pawls holding said doors closed, a rod connecting said pawls to operate in unison, a spring normally holding said rod with the pawls in operative position; a hinged hatch-way door,

a cam projectingonsaid 'door'a'dapted to move said rod to swingthe'pawls to inoperative position when the hatch-way door is closed, and winding meehanism ,on said doors. I i.

4. A ship having a pocket in each side of the hull thereof, air tight bags in said pockets,- hinged 'doors flush with the hull closing said pockets, means including a pair ofp'awls holding said doors closed, a rod connecting said pawls to operate in unison, a '7 spring normally'holding said rod with the pawls in operative position; a -hinged hatch way door, a cam projecting on-said door adapted to move said rod toswing :thepawls to inoperative position when the hatch-way door isclosed and winding-mechanism on said hatch-way door foropening said pocket doors, said winding mechanism comprising a drum, a pair of ropes attached to said drum, and ropes attached to said pocket doors and adapted for connectionto'said drum ropes.

V hatch-way'door for opening said pocket '7 drums onsaid shaft to whioh said ropes are attached, and ratchet and'pawl means holding said shafts against rotation;

In testimony whereof we have afiixed our signatures.

JAKOB FORGIEL. I

- STANLEY soKoLowsiii V 

